New Delhi to Darjeeling is an approximately 4.5-hour combination of flight and taxi. You can also drive; or do a combination of train and taxi. When traveling from New Delhi in June, plan for a bit cooler days and about the same nights in Darjeeling: temperatures range from 38°C by day to 29°C at night. Finish your sightseeing early on the 1st (Sun) so you can drive to Gangtok.